The Median Nerve pp 7-12 | Cite as
Digit II – Wrist; Wrist – Elbow
Surface Recording Technique, Orthodromic Study
Chapter
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Original Settings
Sensitivity was 20 μV/division, sweep speed was 1 ms/division. Low frequency filter, high-frequency filter, duration of pulse, rate of pulse, and the machine used were not specified.
Position
This study was performed in the supine position, with the subject lying on a couch and covered with blankets.
Recording
Following the orthodromic method, signals were recorded at the wrist and just above the elbow and on the course of the median nerve [
1]. For recording at the wrist (R), the active (A) electrode was placed proximally to the distal crease at the wrist; the reference (R) electrode was placed 3 cm proximally to the active electrode (Fig.
1). For recording at the elbow (R), the active (A) electrode was placed proximally to the wrist; the reference (R) electrode was placed proximally to the active electrode (Fig.
2). Distances between recording and stimulating electrodes were not fixed; the authors mapped out the course of the median nerve, before applying the...
Keywords
Peripheral Neuropathy Conduction Velocity Median Nerve Carpal Tunnel Syndrome Carpal Tunnel
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
References
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